– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 10 pm Fri 30 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Fri 30 Oct Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Very mild (max 11°C on Mon afternoon, min 4°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryModerate rain (total 12mm), heaviest on Wed night. Very mild (max 13°C on Tue afternoon, min 7°C on Mon night). Wind will be generally light. | |||||||||||||||
Saturday 31 | Sunday 1 | Monday 2 | Tuesday 3 | Wednesday 4 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | | |  |  | |  | | |  | |
rain shwrs | some clouds | cloudy | some clouds | clear | clear | some clouds | some clouds | cloudy | light rain | light rain | some clouds | cloudy | cloudy | light rain | mod. rain | |
Cloud base (m) | 1600 | 5550 | 1700 | 4900 | 6200 | 5600 | 2700 | 1600 | 2400 | 3000 | 3300 | 1800 | 600 | |||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.8 | — | — | — | — | — | — | — | — | 0.2 | 0.7 | — | — | — | 0.4 | 10 |
max °C | 5 | 8 | 9 | 7 | 8 | 10 | 6 | 9 | 11 | 9 | 11 | 13 | 10 | 9 | 10 | 8 |
min °C | 4 | 4 | 8 | 5 | 5 | 8 | 5 | 5 | 10 | 7 | 7 | 12 | 9 | 8 | 9 | 7 |
chill °C | 3 | 3 | 8 | 5 | 5 | 8 | 5 | 5 | 10 | 6 | 7 | 12 | 9 | 8 | 7 | 5 |
Freezing level m | 1500 | 1600 | 1750 | 1900 | 1800 | 1950 | 2600 | 3000 | 2950 | 2300 | 2400 | 2500 | 2400 | 1900 | 2000 | 1800 |
 | — | 7:52 | — | — | 6:54 | — | — | 7:54 | — | — | 7:56 | — | — | 7:58 | — | — |
 | — | — | 5:50 | — | — | 4:47 | — | — | 5:45 | — | — | 5:45 | — | — | 5:43 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 11°C on Mon afternoon, min 4°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Moderate rain (total 12mm), heaviest on Wed night. Very mild (max 13°C on Tue afternoon, min 7°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of Washington.